Hello Kev, Thanks for the additional information. After using various techniques to enhance the manufacturer details on the reverse, I have come to the conclusion that it probably was manufactured by Friedrich Linden of Ludenscheid. Currently I'm in contact with the von Luckner society in Halle, they are hopefull that they can make an identification of the medal/badge. There are a couple of other items that came with this medal/badge - one is a skull wax seal stamp and the other is a badge with a hand holding a sword - as attached. Cheers, Mike